private async Task <ServerResponse> UnwrapResponseAsync(ServerSignedResponse resp)
{
var response = new ServerResponse();
try
{
var c = await GetSignatureHelperAsync(resp.Object.Fingerprint, response).ConfigureAwait(false);
return(c.Verify <ServerSignedResponse, ServerResponse>(resp));
}
catch (FingerprintException e)
{
_logger?.LogError(e, "Fingerprint Exception trying to unwrap the response");
response.ErrorMessage = e.Message;
response.I18NErrorMessages = e.I18NErrorMessages;
response.ResultCode = e.Code;
return(response);
}
catch (Exception e)
{
_logger?.LogCritical(e, "Critical Exception trying to unwrap the response");
response.ErrorMessage = e.Message;
response.ResultCode = ResultCodes.SystemError;
return(response);
}
}
internal async Task <ServerResponse> UnwrapResponse(ServerSignedResponse resp)
{
ServerResponse response = new ServerResponse();
try
{
SignatureHelper c = await GetSignatureHelper(resp.Object.Fingerprint, response);
return(c.Verify <ServerSignedResponse, ServerResponse>(resp));
}
catch (Exception e)
{
response.PopulateFromException(e, Logger);
return(response);
}
}
private async Task <SignatureHelper> GetSignatureHelper(string fingerprint, ServerResponse response)
{
SignatureHelper c = CertificateHelperFactory.Instance.VerifyKeys.FirstOrDefault(a => a.Key == fingerprint).Value;
if (c == null)
{
await CertificateHelperFactory.Instance.ServerCertSemaphore.WaitAsync();
try
{
ServerSignedResponse <PublicKeyInfo> r = await Channel.GetServerPublicKey(fingerprint);
if (r.Object.Object.ResultCode != ResultCodes.Ok)
{
throw new FingerprintException(("en", "Invalid or outdated Fingerprint, server returns: " + (r.Object.Object.ErrorMessage ?? "")), ("es", "Huella invalida o vieja, el servido retorna: " + ((r.Object.Object.I18NErrorMessages.ContainsKey("es") ? r.Object.Object.I18NErrorMessages["es"] : r.Object.Object.ErrorMessage) ?? "")));
}
X509Certificate2 cert = new X509Certificate2(Convert.FromBase64String(r.Object.Object.Response.Key));
c = new SignatureHelper(cert, false);
SignatureHelper verify = null;
if (CertificateHelperFactory.Instance.VerifyKeys.ContainsKey(r.Object.Fingerprint))
{
verify = CertificateHelperFactory.Instance.VerifyKeys[r.Object.Fingerprint];
}
else if (r.Object.Fingerprint.Equals(r.Object.Object.Response.Fingerprint, StringComparison.InvariantCultureIgnoreCase))
{
verify = c;
}
if (verify == null)
{
throw new FingerprintException(("en", "Fingerprint not found: " + r.Object.Fingerprint), ("es", "Huella no encontrada: " + r.Object.Fingerprint));
}
verify.Verify <ServerSignedResponse <PublicKeyInfo>, ServerResponse <PublicKeyInfo> >(r);
CertificateHelperFactory.Instance.VerifyKeys.Add(r.Object.Object.Response.Fingerprint, c);
return(c);
}
finally
{
CertificateHelperFactory.Instance.ServerCertSemaphore.Release();
}
}
return(c);
}